Features
Through Hole Package
150oC Junction Temperature
Mechanical Data
Case: TO-92, Molded Plastic
Polarity: indicated as below.
Maximum Ratings @ 25oC Unless Otherwise Specified
Charateristic Symbol Value Unit
Collector-Emitter Volta
g
e BC54
6
BC547
BC54
8
VCEO
65
45
30
V
Collector-Base Volta
g
e BC54
6
BC547
BC54
8
VCBO
80
50
30
V
Emitter-Base Voltage VEBO 6.0 V
Collector Current(DC) IC100 mA
Power Dissipation@TA
=25oCPd
625
5.0
mW
mW/ oC
Power Dissipation@TC
=25oCPd
1.5
12
W
mW/ oC
Thermal Resistance, Junction to
Ambient Air 200 oC/W
Thermal Resistance, Junction to
Case 83.3 oC/W
Operating & Storage Temperature T
j
,T
STG -55~150 oC
BC546B
BC547A/B/C
BC548A/B/C
NPN Silicon
Amplifier Transistor
625mW
R
q
JC
R
q
JA
TO-92
AE
B
C
D
G
Revision: 8 2010/08/18
omponents
20736 Marilla Street Chatsworth
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MCC
DIMENSIONS
INCHES MM
DIM MIN MAX MIN MAX NOTE
A .170 .190 4.33 4.83
B .170 .190 4.30 4.83
C .550 .590 13.97 14.97
D .010 .020 0.36 0.56
E .130 .160 3.30 3.96
G .096 .104 2.44 2.64
TM
Micro Commercial Components
xCase Material: Molded Plastic. ULFlammability
Classification Rating 94V-0 and MSL rating 1
www.mccsemi.com
1 of 5
x Marking:Type Number
3
2
11-Collector
2-Base
3-Emitter
• Lead Free Finish/Rohs Compliant) ("P"Suffix designates
Compliant. See ordering information)
MCC
ON CHARACTERISTICS
DC Current Gain
(IC = 10 µA, VCE = 5.0 V) BC547A/548A
BC546B/547B/548B
BC548C
(IC = 2.0 mA, VCE = 5.0 V) BC547A/548A
BC546B/547B/548B
BC547C/BC548C
(IC = 100 mA, VCE = 5.0 V) BC547A/548A
BC546B/547B/548B
BC548C
hFE —
—
—
110
200
420
—
—
—
90
150
270
180
290
520
120
180
300
—
—
—
220
450
800
—
—
—
—
Collector–Emitter Saturation Voltage
(IC = 100 mA, IB = 5.0 mA)
VCE(sat) —--- 0.3
V
Base–Emitter Saturation Voltage
(IC = 100 mA, IB = 5.0 mA)
VBE(sat) —1.0— V
Base–Emitter On Voltage
(IC = 2.0 mA, VCE = 5.0 V)
(IC = 10 mA, VCE = 5.0 V)
VBE(on) 0.55
——
—0.7
0.77
V
SMALL–SIGNAL CHARACTERISTICS
Current–Gain — Bandwidth Product
(IC = 10 mA, VCE = 5.0 V, f = 100 MHz) BC546
BC547
BC548
fT150
150
150
300
300
300
—
—
—
MHz
Output Capacitance
(VCB = 10 V, IC = 0, f = 1.0 MHz) Cobo — 1.7 4.5 pF
Input Capacitance
(VEB = 0.5 V, IC = 0, f = 1.0 MHz) Cibo — 10 — pF
Small–Signal Current Gain
(IC = 2.0 mA, VCE = 5.0 V, f = 1.0 kHz)
BC547A/548A
BC546B/547B/548B
BC547C/548C
hfe
125
240
450
220
330
600
260
500
900
—
Noise Figure
(IC = 0.2 mA, VCE = 5.0 V, RS = 2 kW, BC546
f = 1.0 kHz, ∆f = 200 Hz) BC547
BC548
NF —
—
—
2.0
2.0
2.0
10
10
10
dB
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic Symbol Min Typ Max Unit
OFF CHARACTERISTICS
Collector–Emitter Breakdown Voltage BC546
(IC = 1.0 mA, IB = 0) BC547
BC548
V(BR)CEO 65
45
30
—
—
—
—
—
—
V
Collector–Base Breakdown Voltage BC546
(IC = 100 µAdc) BC547
BC548
V(BR)CBO 80
50
30
—
—
—
—
—
—
V
Emitter–Base Breakdown V oltage BC546
(IE = 10 mA, IC = 0) BC547
BC548
V(BR)EBO 6.0
6.0
6.0
—
—
—
—
—
—
V
BC546 thru BC548C
Revision: 8 2010/08/18
TM
Micro Commercial Components
www.mccsemi.com
2 of 5
MCC
BC546 thru BC548C
Figure 1. Normalized DC Current Gain
IC, COLLECTOR CURRENT (mAdc)
2.0
Figure 2. “Saturation” and “On” Voltages
IC, COLLECTOR CURRENT (mAdc)
0.2 0.5 1.0 10 20 50
0.2 100
Figure 3. Collector Saturation Region
IB, BASE CURRENT (mA)
Figure 4. Base–Emitter Temperature Coefficient
IC, COLLECTOR CURRENT (mA)
2.0 5.0 200
0.6
0.7
0.8
0.9
1.0
0.5
0
0.2
0.4
0.1
0.3
1.6
1.2
2.0
2.8
2.4
1.2
1.6
2.0
0.02 1.0 10
020
0.1
0.4
0.8
hFE, NORMALIZED DC CURRENT GAIN
V, VOLTAGE (VOLTS)
VCE, COLLECTOR-EMITTER VOLTAGE (V)
VB, TEMPERATURE COEFFICIENT (mV/ C)°θ
1.5
1.0
0.8
0.6
0.4
0.3
0.2 0.5 1.0 10 20 50
2.0 10070
307.05.03.00.70.30.1
0.2 1.0 10 100
TA = 25°C
VBE(sat) @ IC/IB = 10
VCE(sat) @ IC/IB = 10
VBE(on) @ VCE = 10 V
VCE = 10 V
TA = 25°C
-55°C to +125°CTA = 25°C
IC = 50 mA IC = 100 mA
IC = 200 mA
IC =
20 mA
IC =
10 mA
1.0
BC547/BC548
Figure 5. Capacitances
VR, REVERSE VOLTAGE (VOLTS)
10
Figure 6. Current–Gain – Bandwidth Product
IC, COLLECTOR CURRENT (mAdc)
0.4 0.6 1.0 10 20
1.0 2.0 6.0 40
80
100
200
300
400
60
20
40
30
7.0
5.0
3.0
2.0
0.7 1.0 10 202.0 50
307.05.03.00.5
VCE = 10 V
TA = 25°C
C, CAPACITANCE (pF)
fă, CURRENT-GAIN - BANDWIDTH PRODUCT (MHz)
T
0.8 4.0 8.0
TA = 25°C
Cob
Cib
Revision: 8 2010/08/18
TM
Micro Commercial Components
www.mccsemi.com
3 of 5
MCC
BC546 thru BC548C
BC547/BC548
Figure 7. DC Current Gain
IC, COLLECTOR CURRENT (mA)
Figure 8. “On” Voltage
IC, COLLECTOR CURRENT (mA)
0.8
1.0
0.6
0.2
0.4
1.0
2.0
0.1 1.0 10 100
0.2
0.2
0.5
0.2 1.0 10 200
TA = 25°C
VBE(sat) @ IC/IB = 10
VCE(sat) @ IC/IB = 10
VBE @ VCE = 5.0 V
Figure 9. Collector Saturation Region
IB, BASE CURRENT (mA)
Figure 10. Base–Emitter Temperature Coefficient
IC, COLLECTOR CURRENT (mA)
-1.0
1.2
1.6
2.0
0.02 1.0 10
020
0.1
0.4
0.8
VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS)
VB, TEMPERATURE COEFFICIENT (mV/ C)°θ
0.2 2.0 10 200
1.0
TA = 25°C
200 mA
50 mA
IC =
10 mA
hFE, DC CURRENT GAIN (NORMALIZED)
V, VOLTAGE (VOLTS)
VCE = 5 V
TA = 25°C
00.5 2.0 5.0 20 50 100
0.05 0.2 0.5 2.0 5.0
100 mA
20 mA
-1.4
-1.8
-2.2
-2.6
-3.0
0.5 5.0 20 50 100
-55°C to 125°C
θVB for VBE
BC546
Figure 11. Capacitance
VR, REVERSE VOLTAGE (VOLTS)
40
Figure 12. Current–Gain – Bandwidth Product
IC, COLLECTOR CURRENT (mA)
0.1 0.2 1.0 50
2.0 2.0 10 100
100
200
500
50
20
20
10
6.0
4.0
1.0 10 50 100
5.0
VCE = 5 V
TA = 25°C
C, CAPACITANCE (pF)
fă, CURRENT-GAIN - BANDWIDTH PRODUCT
T
0.5 5.0 20
TA = 25°C
Cob
Cib
Revision: 8 2010/08/18
TM
Micro Commercial Components
www.mccsemi.com
4 of 5
MCC
Revision: 8 2010/08/18
TM
Micro Commercial Components
www.mccsemi.com
5 of 5
Ordering Information
Device Packing
(Part Number)-AP Ammo Packing;2Kpcs/AmmoBox
(Part Number)-BP Bulk;1Kpcs/Bag
products are represented on our website, harmless against all damages.
***LIFE SUPPORT***
***IMPORTANT NOTICE***
without the expresse written approval of Micro Commercial Components Corporation.
MCC's products are not authorized for use as critical components in life support devices or systems
Micro Commercial Components Corp .reserves the right to make changes without further notice to any
product herein to make corrections, modifications , enhancements , improvements , or other changes .
Micro Commercial Components Corp .does not assume any liability arising out of the application or
use of any product described herein; neither does it convey any license under its patent rights ,nor
the rights of others . The user of products in such applications shall assume all risks of such use
and will agree to hold Micro Commercial Components Corp .and all the companies whose